19222644672 has 756 divisors, whose sum is σ = 73263428784. Its totient is φ = 4713984000.

The previous prime is 19222644659. The next prime is 19222644673. The reversal of 19222644672 is 27644622291.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19222644673) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 468844972 + ... + 468845012.

Almost surely, 2^19222644672 is an apocalyptic number.

19222644672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19222644672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36631714392).

19222644672 is an abundant number, since it is smaller than the sum of its proper divisors (54040784112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19222644672 is a wasteful number, since it uses less digits than its factorization.

19222644672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 95 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 19222644672 in words is "nineteen billion, two hundred twenty-two million, six hundred forty-four thousand, six hundred seventy-two".